Wrench.



G. I. MARLAND.

WRENCH.

APPLICATION FILED JULY 9.1915.

PatentedSept. 21, 191.5.

o 0C /F a F 1 i at COLUMBIA PLANOGHAPII COUWASHINUTON. D c.

WRENCH.

Application filed July 9, 1915.

To all whom it may concern 7 Be it known that I, GEORGE IGNATIUS MARLAND, a subject of the King of Great Britain and Ireland, &c., residing at pookle College, Dookie, in the State of V1ctor1a, Commonwealth of Australia, have invented certain new and useful Improvements 1n and Relating to Wrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same.

This invention relates to improvements in wrenches providing for adjustment of the movable jaw relatively to the fixed one, by sliding, which takes less time than screwing. My construction provides for the removal of the movable aw, leaving the fixed jaw on its stem usable as a hammer. It is common to find wrenches used as hammers, but that often damages them.

In the accompanying drawings an embodiment of the invention is illustrated, but my claim is not restricted to the proportions and designs shown.

Figure 1 is a perspective view of the wrench with a part broken away. Fig. 2 is a partly sectional elevation of a part of the stem having ratchet teeth and carrying a casing on which is the movable jaw. Fig. 3 is similar to Fig. 2, but shows the movable casing adjusted for sliding. Fig. 4 is a sectional elevation at right angles to Fig. 8. Fig. 5 is a plan of parts in Fig. 1. Fig. 6 shows, partly in section, various details on a larger scale. Fig. 7 shows the implement after the slidable casing has been removed. In Figs. 1 and 5 a retraction pin is omitted.

In these views a is a stem or handle, carrying a fixed jaw or head 6, having a hammer head 6 of any suitable form. The nut or article to be gripped will be located between jaw Z), the end, cf, of the stem, and the movable jaw, 0 which is part of a hollow casing c, which has one or more bands (Z fitting around the stem and holding the casing in place but allowing of sliding motion.

To prevent the movable casing from slipping off the handle, a stop is provided, as a spring tang e depressible into a recess or slot f in the handle g being a screw, rivet, or the like to hold the tang, or as in Fig. 7, a screw-pin 6 can be adjusted higher or lower in a hole 7 which is tapped in stem a, the top, of the hole being enlarged so that it Specification of Letters Patent.

Patented Sept. 21, 1915.

Serial No. 38,917.

will receive the head of the pin when it is required to disconnect the casing. Thus in each case a member is lowered to allow casing 0 to be removed; otherwise the casing, on reaching the stop, will travel no farther toward the handle end.

Any suitable teeth are provided, as h, for engagement by a pawl or arm a, to lock casing 0, to which arm 2' is pivoted as by pin 7', against moving farther from jaw 6, though the casing can always move toward jaw b if the nut or object'to be gripped allows room for jaw to come closer. The shape of the jaws is not necessarily suitable for nuts only.

Arm 2' is located in a chamber is within casing c, and as in Fig. 2 is normally pressed down by a suitable retractible spring p, shown as spiral, but not necessarily so. On retracting the spring, it takes the position in Fig. 8. The means for retraction consists of a pin 0 which is attached to the arm 2' as seen in Fig. 6 by having its end passed loosely through a hole i and enlarged. This pin is revoluble relatively to arm 2', and extends outside the casing through a circular recess m, through the lower wall of which is cut a rectangular slot 17,. A part of the pin under the head, as marked 8, is also longer than it is broad providing a rectangular shank portion, and in the position of Fig. 2 part 8 fits down in slot at which is of similar size. "When however the pin is lifted, the part 8 is raised out of slot n. The pin should then be rotated so that part .9 will rest on the casing as in Figs. 3 and 6 so crossing slot 12, and thus the raised pin cannot descend, the casing being then slidable, so as to widen the distance between the jaws to lit a nut or article. As soon as the fit is effected the pin head, a", will be rotated until the part c registers with the slot a and enters the latter by the action of the spring, thus locking the arm 2' in position in engagement with teeth 72,. The pin head has preferably a part 10 of circular horizontal section.

Having described this invention what is claimed by Letters Patent is A wrench, consisting of a shank, having a fixed aw, a handle end, and an intermediate series of ratchet teeth; a casing, including a jaw, slidingly encompassing said shank, and having a rectangular slot formed in its up per wall; a pawl pivoted within said cas- 'fshank portion,

whereby when said pin is elevated and r0- tated by said head, the said pawl is held dis- 1ng; a spring for causing said pawl to yield-' engaged from said teeth, substantially as described. Y In witness whereof I have hereunto set my hand in the presence of two witnesses. GEORGE IGNATIUS MARLAND.

Witnesses:

GEORGE G. TURRI, BEATRICE M. LOWE.

Gopies of this patent may. be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D. G. 

